DRAINAGE CHANNEL IN PERMAFROST ZONE,申请号SU19914952364-传众专利搜索

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发明名称	DRAINAGE CHANNEL IN PERMAFROST ZONE
摘要
申请公布号	RU2004683(C1)	申请公布日期	1993.12.15
申请号	SU19914952364	申请日期	1991.05.12
申请人	UKHOV NIKOLAJ V	发明人	UKHOV NIKOLAJ V
分类号	E02B11/00;(IPC1-7):E02B11/00	主分类号	E02B11/00
代理机构		代理人
主权项
地址

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